Oil pumping and distributing apparatus.



PATENTED MAY 30, 1905. E. LAOROIX & C. J. GRERAN.

OIL PUMPING AND DISTRIBUTING APPARATUS.

APPLICATION FILED APR 25,1904.

2 SHEETS-SHEET -1.

.Niran Starts Patented May 30, 1905.

Patent @rrrna.

EMILE LACROIX AND CHARLES J. CRERAN, OF HOLYOKE, MASSA CHUSETTS.

GEL PUilliPlN'G-E AND DHSTRHBUTHNG: APPARATUS" SPECIFICATION formingpartof Letters Patent No. 791,427, dated May 30, 1905. 1 Application filedApril 25, 1904. Serial No. 204,764.

To all whom it may concern:

Be it known that WQ.,,EMILE LAeRoIX and CHARLES J... CRERAN, citizens ofthe United States of America, and residents of Holyoke, in the county ofHampden and State of Massachusetts, have invented certain new and usefulImprovements in Oil Pumping and Distributing Apparatus, of which thefollowing is a full, clear, and exact description.

This invention relates to improvements in an apparatus for pumping oilfrom one or' more sup ply-tanks into one or more distributing-tanks.each of which latter tanks has leading therefrom pipes for conveying anddelivering the oil to diiferently-located bearings or places where acontinuous lubrication or oiling is desirable or necessary, theapparatus having provision for a return back to the supply tank or tanksof any excess of oil which may be pumped intothe distributing tank ortalnks.

The object of the invention is to generally improve and increase theeificiency of the pumping apparatus and render it most satisfactorilyavailable for its demands in use.

The invention consists in combinations and arrangements of parts andconstructions of certain of the parts, all substantially as hereinafterdescribed, and set forth in the claims.

The apparatus may be organized with a single oil-supply receiver and asingle distributing-tank, or it may be madeduplex, with doubleoil-supply and oil-distributing tanks and conjunctive appliances, asingle actuating mechanism being provided in common to and serving forboth departments of the apparatus.

In the drawings, Figure 1 is a perspective view showing theoil-distributing apparatus duplex. Fig. 2 is substantially a sectionalview vertically and centrally through the principal portions of a singledepartment of the pumping apparatus Fig. 3., is a plan view of part ofthe same. Fig. 4: is a perspective view of an interchangeable camincluded in the mechanism. Fig. 5 is a sectional view of a needle-valveprovided in one of the distributing-pipes leading to a bearing to Whichoil is to be delivered.

Similar characters of reference indicate corresponding parts in all ofthe views.

Describing the apparatus regarded as asingle-acting oil-distributingpump and referring to the drawings, A represents an oilsupply tank, thesame having a removable cover a therefor and havingin its top a strainer(0 Below the oil-supply tank is a body B, having, by reason of thecylindrical opening therein and the continuation in the coupled section5, a cylindrical pumping-chamber J, down to the top of'which leads avertical oil-pipe C from the bottom of the oil-tank, said pipe having ashut-off or regulating cock D, having an operatinghandle 0 therefor.Opposite the coupled section b and alined therewith is a section d,coupled to the body B,having a stutfingbox d2 at its end and throughwhich and into the cylindrical chamber plays a round plungerbar orpiston E, having at its outer end a roller 0 to receive the impingementthereagainst of the operating-cam Fen a cam-shaft G, which is B of thechamber including body B. The' spiral springs f encircle the rods f andare in compressionbetween the cross-bar E and the parts B of thecylinder-body and retract the piston after each working movement by thecam. The extremities of the rods f which project through and beyond theholes f, are screw-threaded, as indicated at f and receive thumb-nuts fwhich constitute adjustable stops, so that the piston may not move inthe opposite direction from its cam-thrust mov"- ment in any undesirabledegree.

Located above the cylinder-chamber J is an oil-distributing tank H, intothe bottom of which is connected a vertical pipe 9, which,

by elbow-coupling g is coupled to the sec tion 5, comprised in which isa portion of the cylinder-chamber J, a check-valve g being provided inthe bottom of the distributingchamber at the junction therewith of thepipe g, and a-further check-valve g is preferably provided in thevertical pipe 9. The re ciprocatory movement of the piston E insures aforcing of the oil conveyed into the pumping cylindrical chamberJ fromthe oil-supply tank A through the conduit 9 up into the distributingtankH past the check valve or Valves, and the means for imparting the rotarymovement to the cam for actuating the pumpingpiston E will be nowdescribed. The cam, which may be of any suitable shape, (a variety ofshapes being noticed in comparison of Figs. 1, 2, and 4,) is mounted onthe aforementioned horizontal shaft G, which is supported in suitablejournal-bearings h in Working proximity to the roll-endedpiston, andsaid shaft has afiixed thereon a disk or wheel L, which, as shown inFig. 1, is provided with internal ratchet-teeth 2'.

M represents a pawl-carrier carried by the hub it, which is loose aboutthe extremity of the cam-shaft G, said carrier in the drawings beingshown as an arm or rod radially extending from the hub in an upwardinclined direction adjacent the face of the ratchet-- wheel and to ablock 772, affixed by the set-' screw m to the pawl-carrying rod m. Thepawl is understood as being pivotally joined, and 0 represents thepawl-spring.

N represents a driving-shaft revolubly carrying the crank-pin n, towhich one end of the pitman-rod O has connection, the other end of thepitman-rod having an appliance p, including integral or joined doublesleeves, with perforations at right angles, one sleeve-like portionencircling and being fastened to the pitman-rod, while the otherencircles and is adjustably fastened to the pawl-carrier rod M by theset-screw 32 By loosening the screw and sliding the sleeve-like part ofthe appliance 39 up or down the stroke of the pitman will impart avaried swinging movement to the pawl-carrier for a correspondinglygreater or less partial rotary movement to the ratchetwheel on thecam-shaft.

Q represents a click or detent engaging in the ratchet-teeth and forpreventing retro: grade movement of the wheel L. Said detent ispivotally mounted on a statidnary bracket 1 and has the pawl-spring gfor keeping it in its ratchet-tooth engagement.

In order to vary the impulses or pumping action of the pumping-piston,interchangeable cams of different shapes may be detachably afiixed onthe, cam-shaft, it being only necessary to remove the journal-caps andlift the shaft from one end thereof to permit of the removal of one camand the replacement of another.

on the internally-threaded nuts t, which are shown as having flanges tfor convenience of hand operation. The cam being slipped on the shaftand adjusted, (the cam and its hubs being understood as having a borefrom end to end,) the hand-nuts are tightened on the tapered andscrew-threaded extremities of the split hubs, binding the latter and thecam securely on the shaft.

The ratchet-Wheel L, as indicated in Figs.

'1 and 3, may have in addition to the internal ratchet-teeth theedgewise-located ratchet teeth to in a wider circle of arrangement thanthat of the ratchet-teeth and pawl 0, properly carried on thepawl-carrying arm M, and, as represented in Fig. 3, may engage the setof ratchet-teeth u.

'v 'v represent oil delivery or distributing pipes radiating from themore or less elevated distributing-tank H and understood as extending tovariously-located hearings or places Where oil or lubrication isrequired, and in Fig. 1 one of the pipes 21 is shown as going to ajournal-bearing m in a manner to supply lubrication thereto, said pipe ehaving a needle- .valve coupled therein, so that the quantity of oil tobe delivered from the distributingpipe 'umay be minute or considerable,according to the adjustment of the needle-valve. I

Connectedwith the top of the distributingtank H is a conduit P, servingas an overflowpipe and extended back to connection with the supply-tankA, the said overflow-pipe having appertaining thereto the check-valve 3properly fitted in the coupling y which connects different sections ofthe overflow-pipe P. Said check-valve is held closed to the seat by thespiral spring y, one end of which is in bearing against the valve, whilethe other end of such spring is in bearing against a screwplug p whichhas a thread engagement within the upper end of the coupling 3/. Byturning the screw-plug the spring compression on the valve may bevaried, and consequently there may be acquired a regulation of thepressure at which the excess oil in the distributing-tank would beforced past the check- 7 valve and returned to the supply-tank.

apparatus, which are substantially identical.

with those already pointed out for the one department of the machine,although it is pertinent to state, as clearly seen from theillustration, that one cam and cam-actuating mechanism is combined incommon to bothcof the not desirable to run the pump for a long time bypower.

Various changes in minor details and proportions of the parts may bemade without departing from our invention.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is-

1. In an oil-pumping apparatus, in combination, an oil-supply tank, acylinder below and pipe-connected therewith, a piston in said cylinder,and means for imparting reciprocatory movement thereto, adistributing-tank located above the cylinder and pipe-connectedtherewith, and having one or more oil-distributing conduits leadingtherefrom, and an overflow-pipe leading from the distributing-tank backto the supply-tank.

2. In an oil-pumping apparatus, in combination, an oil-supply tank, acylinder below and pipe-connected therewith, a piston in said cylinder,and means for imparting reciprocatory movement thereto, adistributing-tank located above the cylinder and pipe-connectedtherewith, and having one or more oil-distributing conduits leadingtherefrom, and an overflow-pipe leading from the distributing-tank backto the supply-tank and a yielding valve therein.

3. In an oil-pumping apparatus, in combination, an oil-supply tank, acylinder below and pipe-connected therewith, a piston in said cylinder,and means for imparting reciprocatory movement thereto, adistributing-tank located above the cylinder and pipe-connectedtherewith, and having one or more oil-distributing conduits leadingtherefrom, and an over- 'fiow-pipe leading from the distributing-tankback to the supply-tank, aspring-closed valve therein, and means foradjusting the compressionof the spring for such valve.

4. In an oil-pumping apparatus, in combination, an oil-supply tank, acylinder below and pipe connected therewith, a piston in said cylinder,and means for imparting reciprocatory movement thereto, adistributing-tank located above the cylinder and pipe-connectedtherewith, and having one or more oil-distributing conduits leadingtherefrom, and an overflow-pipe leading from the top of thedistributing-tank back to the supply-tank, a checkvalve in saidoverflow-pipe, a spring applied for a closing pressure to said valve,and a screw-plug adjustably operable against the said spring.

Signed by us at Springfield, Massachusetts, in presence of twosubscribing witnesses.

EMILE LACROIX. CHARLES J. CRERAN.

Witnesses:

WM. ,8. BELLOWS, A. V. LEAHY.

